一张图解释值类型和引用类型内存分配

今天有人问我值类型和引用类型区别，我给他写了几行代码，画了一张图：

namespace ConsoleApplication
{
    struct MyStruct
    {
        public int Val;
    }

    class MyClass
    {
        public int Val;
    }

    class Program
    {
        static void Main(string[] args)
        {
            MyStruct ms1 = new MyStruct();
            ms1.Val = 1;

            MyClass mc1 = new MyClass();
            mc1.Val = 2;

            MyStruct ms2 = ms1;

            MyClass mc2 = mc1;
        }
    }
}